Feb 1, 2019 · In this chapter, we will discuss the key components of performing an endoscopic Draf I and IIa frontal recess surgery. This will include anatomic considerations, preoperative considerations, surgical instrumentation needed, pearl and pitfalls, the actual surgical dissection steps, and finally postoperative considerations.

Apr 25, 2022 · The Draf IIa technique involves systematic clearance of the frontal recess partitions and creation of a neo-recess that spans from the skull base to the frontal beak (posterior-anterior) and lamina papyracea to middle turbinate (lateral-medial).

Draf type I (Figure 1) is used to treat the diseases not extending to the frontal sinus, but the frontal recess, the procedure is done through the endonasal approach as a complete ethmoidectomy...

For chronic sinusitis surgery, the Draf III approach provides a common median drainage pathway for bilateral frontal sinuses from orbit to orbit. The Draf IIb provides unilateral drainage from...

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